Press F5 to run the project and view the following:

• The five BubbleChartSeries are applied and each BubbleChartSeries is represented in a different color. For more information on BubbleChartSeries see Series.
• The Header text is applied to the BubbleChart and the Legend properties are customized. For more information see Header and Footer.
• The default font size was modified for the Axis chart elements (X-Axis, Y-Axis). For more information see Axis Appearance.
• Formatting is applied to the chart labels that appear inside the bubble. For more information see Chart Labels.
• Hover over the overlapped bubbles and notice how the overlapped bubble appears to come out for better viewing and the chart tooltip displays the x, y, and y1 data for the hovered bubble.